[PD] midi latency

Johannes Taelman Johannes.Taelman at rug.ac.be
Sun Feb 23 22:07:32 CET 2003


Hi all,

I'm trying to tune my linux system to lower midi-latency. Seems like
"-audiobuf" has an influence on it. It seems I can't get lower than about
20ms round-trip. (I think I posted my midi latency and jitter diagnostic
patch a while ago). I'm using the alsa virmidi driver in between pd and my
midiports. Should I avoid that? Any hints to reduce latency? Where is the
bottleneck?

My PC runs linux 2.4.20 with lowlatency and ext3 patches, a recent alsa
from cvs, and a recent pd from cvs.

In win2k I could only get 25ms round-trip, so Linux is better, but not as
much as I hoped for...

 j#|@





More information about the Pd-list mailing list